Material Layer
The Material Layer node constructs complex materials that consist of a base layer and up to eight material Layers (Figure 1). The Material Layer node can be connected directly to a Material OUT node (figure 1). Only a material can be connected to the Material pin and only Material Layers can be connected to the Layer pins. Additionally, a Material Layer Group node can connect to any of the Layer pins thus overcoming the eight Layer pin limit on the Material Layer node.
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Material layer
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Figure 1: The Layered Material with a Diffuse material as the Base Material and a Sheen and Specular Layer as the Layer Inputs
Material Layer Parameters
Base Material Pin - The material (Material 1) that sits below any additional Material Layers.
Custom AOV - Writes a mask to the specified custom AOV.
Custom AOV Channel - Determines whether the custom AOV is written to a specific color channel (R, G, or B) or to all the color channels.
Pin Count - The Material Layer inputs.
Compatibility Version The Octane version that the behavior of this node should match.